6350687645 has 4 divisors (see below), whose sum is σ = 7620825180. Its totient is φ = 5080550112.

The previous prime is 6350687639. The next prime is 6350687657. The reversal of 6350687645 is 5467860536.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2379293284 + 3971394361 = 48778^2 + 63019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6350687645 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6350687593 and 6350687602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635068760 + ... + 635068769.

It is an arithmetic number, because the mean of its divisors is an integer number (1905206295).

Almost surely, 2^6350687645 is an apocalyptic number.

It is an amenable number.

6350687645 is a deficient number, since it is larger than the sum of its proper divisors (1270137535).

6350687645 is a wasteful number, since it uses less digits than its factorization.

6350687645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270137534.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The square root of 6350687645 is about 79691.2018042142. The cubic root of 6350687645 is about 1851.8547403241.

It can be divided in two parts, 63506 and 87645, that added together give a palindrome (151151).

The spelling of 6350687645 in words is "six billion, three hundred fifty million, six hundred eighty-seven thousand, six hundred forty-five".